Re: [Freedreno] [PATCH] of/device: add blacklist for iommu dma_ops

From: Marek Szyprowski
Date: Wed Jun 05 2019 - 09:22:27 EST

Hi Rob,

On 2019-06-05 14:57, Rob Clark wrote:
> On Tue, Jun 4, 2019 at 11:58 PM Tomasz Figa <tfiga@xxxxxxxxxxxx> wrote:
>> But first of all, I remember Marek already submitted some patches long
>> ago that extended struct driver with some flag that means that the
>> driver doesn't want the IOMMU to be attached before probe. Why
>> wouldn't that work? Sounds like a perfect opt-out solution.
> Actually, yeah.. we should do that. That is the simplest solution.

Tomasz has very good memory. It took me a while to find that old patches:

It looks that my idea was a bit ahead of its time ;)

Best regards
Marek Szyprowski, PhD
Samsung R&D Institute Poland